Improvement in musical wind instruments



G. E. PARKER.

Musical Wind-Instruments.

NO.140,09, I Patentedjune17,1873.

AM P11/0101 mmsRAPH/c ca. M x( aman/v51? P/eacgss) UNITED STATES PATENTOEEIOE.

GEORGE E. PARKER, OE NEWARK, NEW JERSEY, ASSIGNOR TO MOSES SLATER, OENEW YORK, N. Y.

IMPROVEMENT IN MUSICAL WIND INSTRUMENTS.

Specification forming part of Letters Patent No. 140,069, dated J une17, 1873 application led April 9, 1873.

To all whom 'it may concern:

Be it known that I, GEORGE E. PARKER, of Newark, in the county ofEsseKand State of New Jersey, have invented an Improvement in theValve-Cylindersof Wind Instruments played with the mouth, of which thefollowing is a specification:

This invention relates to the means for fastening the covers to thevalve-cylinders. It consists in a combination, with the notch in theedge of the cylinder, of a screw in the rim or edge of its cover,whereby not only is the latter prevented from turning, but moreover issecured in place simply by the head ofthe screw champing the edge of thecylinder between it and the cover. Great facility is thus afforded forattaching the cover, and its construction is much simpliied; inasmuch asby it the usual screwthread on the outer end of the cylinder andindependent ring arranged to it thereon are dispensed with.

In the drawing, Figure l is a central section of the valve-cylinder of ahorn, with the cover secured according to my invention, taken axiallythrough the valve, and Fig. 2 is a partly sectional end view thereof.

Similar letters ofreference indicate correspondin g parts in bothfigures.

AA represents one ofthe valve-cylinders of a horn or other windinstrument played with the mouth. The pipes or tubes a c represent thebody of the horn, and the parallel pipes b b represent the pipe intowhich the current of' air is diverted by the operation of the valve. Thevalve B is of the usual form, cylin drie, with parallel transversegrooves cut in opposite sides. It may be so turned as to close thebranch pipes b b, and establish communication directly through from oneto the other of the branches a c of the horn proper; or it may be turnedto establish communication between the branches a a and the pipes b b,thereby to divert the current of air from its direct course.

The cover G of the valve-cylinder consists simply of a circular plate,having in its lower edge an annular rabbet, forming a boss which litsWithin the mouth of the cylinder. A screw, s, is inserted in this boss,and when the cover is in place the shank of said screw lits in a notch,n, in the edge of the cylinder provided for its reception. Its headprojects Outside the cylinder, and, on the screw being screwed up tight,clamps the edge of the cylinder between it and the boss of the cover,and thus firmly secures it in place. lhe usual stops e e are provided onthe cover to arrest the movement of the valve at the yproper points.

Heretofore the covers of these cylinders have been usually secured inplace by an independent ring screwed over them onto the edge of thecylinders. This has been expensive, and the covers could not be securedwith that readiness which is desirable. By my invention the cost ofmaking the cylinders is reduced, and their covers have only to beadjusted into place, and a sin gle turn of the screws will serve tosecure them.

What I claim as my invention is The combination, with the notched edgeof the cylinder A, of the cover C, constructed as described, and thescrew s, substantially as and for the purpose herein set forth.

GEORGE E. PARKER.

Witnesses:

FRED. HAYNES, MICHAEL RYAN.

